Culvert-pipe.



RB. ZIEG.

GULVERT PIPE.

APPLICATION FILED APR. 1s, 1912.

Patented Sept. 3, 1912.

2 SHEETS-SHEET 1.

.a Ja

l M @m F. B. ZIEG.

GULVBRT PIPE.

APPLIUATION FILED APR.13,1912.

Patented Sept. 8, 1912` SHEET 2.

2 SHEETS- UNITED, sTATEs PATENT FRAK B. ZIEG,- OF FREDERIGTOWN, OHIO, ASSIGNGR TO THE F. B. ZIEG MNUFA TUBING COMPANY, 0F FREDERICKTOWN, OHIO, L CRPOE/ATIUN QF QHI.

CULVERT-IPE Specification of Letters Patent.

Application filed Api-'i1 1S, 1912. Serial No. 699,673.

To all whom it may concern:

A lle it known that I, FRANK B. Zinc, a citizen of. the United States, residing at lredericktoivn, in the county of Knox and State of Ohio,.have invented certain new and useful improvements in Culvert-Pipes, of which the following is a specification.

My invention relates to an improvement in culvert pipes and more particularly to those of the cast iron-type.

lt is the primary object to provide a; pipe of this character made in sections so reinforced that it Will have a maximum' amount of strength for the amount of metal used in its construction. y

Another object is to provide means for fastening the ends of the sections together so that in the construction of a culvert they will not separate. Still another object is to provide means for centering and alining the sections in case the sections are warped or become spread a litt-le in cooling after the cast is made, provision being made to bring the edges to a true circle When the sect-ions are bolted together.

With theseand other objects in View, this invention comprises cast sections having means at the ends for interlocking adjacent sections by inserting the ends o one in the bell ot the other' and giving a slight axial operation to one or both sections, and it further consists in certain novel forms of rectilinear and circular ribbing whereby to give strength -to the surface at sthe points Where. it-Would he most exposed and sub- ,.jectedv to injury, Wear and tear.

In the accompanying draWingsfFigure l is a top plan View of o-ne section. Fig. 2 is an end View. Fig. 3' is an enlarged sectional detail. Fig. 4 is an enlarged top plan View of a portion of the floor section, and Fig. `5`is a sectional View through on of the bulk heads.

The two sections may he so designed' and constructed that they may both loe cast in the same mold and/in the preferred form as shown in'Fig. 1, the outer surface is formed in longitudinal and transverse raised ribs 1, 1 and 2, 2, and in the uppermost rectangular spaces formed thereby, the circular raised ribs 33 are formed. The purpose'of these ribs is to give the pipe additional strength and by providing the pipe .With the The two ends of the sections 'formed somewhat like 'the ordinary pipe, 'that r" say with an enlarged hellA at one end. and smaller at the other end., the smaller end of one section being adapted to enter the hell end of' the other section. The hell endv et is provided with inwardly projecting lugs 5, 5, and thesrnaller end is provided With a circumferential rih G and with lugs?, i' corresponding in shape to the lugs 5, 5 and separated ronr one another 'least the Width of a lug so `that the lugs adjacent ends of two pipes, when 'the latter are out together, interlock and afterward prevent separation by giving a'snihcient turn to one or hoth pipes to brinn the lugs of the two opposite or against :ich other. Theadiacent side edges of the pipe sections are formed with a double flange and the ol ject of this is to form a tight joint when the half sections of ni e are oolted together.

In this Way the bolts' draw the half sections close. to each other until practically e., Water tight oint is formed, the holte passing through the holes inthe ears 9, 9.

As a provision for truing the sections when Warped or spread, the ifshaped' rilo and corresponding groove 'il and 12 respectively are formed. in the outer flange of the double iange so that in putting the sections together and loolting them, if there is any such irregularity due `to warping or spreading, it is counteracted in this Way and the sections are brought to a true circle Vand made to it properly when drawn together. By thus ribbing the surface the strength of the sections is greatly increased and loy rea- Stison of the interlocking feature at the ends of the sections six or more of the pipe sections may be laid together and hy putting a block under each end of the pipe the center Will support itself. The advantage of this con struction is that when sections of culvert making a length of twenty or thirty feet are placed in the ground and the dirt heconies wedged from beneath the center of the pipe or culvert the same Will still support itself and carry any load over the road VWithout sagging in the center, which is one of the several advantageous features of my pres ent invention.

` Tfn order to prevent the dirt from falling over the ends of the pipe when placed across the road, or from washing from beneath the bulk heads ends of the pipe, I propose to use the flanged tions adapted to tit the exterior contour of the pipe and be bolted together. they being held in place by the bell at one end and lugs 14, 14E placed at intervals on the surface of the pipe, and the circumferential rib 6 on the other end and lugs 15, l5, corresponding to lugs 14, le at the bell end. In this Way the bulk heads will necessarily always stand in one position and will be prevented from tipping in either direction without requiring brace .rods to support them.

.Having fully described my invention, 'what I claim as new and desire to secure by l. vA culvert pipe having raised annular ribs arranged in pairs on the outer surface adapted to strengthen the pipe and protect its main surface, and longitudinally raised ribs merging into and tangential to said an- These are made in half sec-` ibamos 4. The combination with a pipe having a bell at one end and circumferential rib at the other, and lugs slightly removed therefrom, of sectional or split bull; heads con- Y structed and adapted to lit the space between the bell or rib and be secured together around the pipe.

5, A culvert pipe made in longitudinal half-sections, said sections capable of being molded in the same mold and having at their ends uniformly-located lugs extending inwardly and outwardly at opposite ends with spaces therebetween approximately corre# spending to the length of the lugs, whereby the end of one pair of sections is adapted to interlock. with and by an axial turn be secured to the next adjacent section of culvert.

G. A culvert pipe composed of correspondingly-niolded half-sections, each section having` uniformly-constructed internal lugs on one end and external lugs on the other end, and means for holding the sections together.

.ln testimony whereof I aliix my signature, in the presence of two witnesses.

FRANK B. ZIEG.

Witnesses L. P. BnnN'rLINsnn, H. E. CAssnLL. 

